Review on Manganese Sulfate Monohydrate 32 Pounds by Michael Jennings

This easily water-soluble sachet is suitable as a garden supplement for mature queen palms showing early signs of manganese deficiency (aka Frizzle Top) which is particularly common in mine nutrient-poor western and alkaline soils. Be sure to acidify the soil to encourage root uptake. I've noticed noticeable landscaping of the upper canopy and better shape of the emerging leaves since using this about 3 months ago. I used this pack on 7 medium sized queen palms which showed only slight yellowing and slightly deformed bud leaves. YMMV and some websites suggest trees in severe condition may need a lot more than what I used.